The 20 oz Traveler Tumbler is completely leakproof, cupholder compatible, and has a hygienic circular flip straw for easy sipping. The 20 oz Traveler comes with a removable silicone boot that's perfect for protecting your bottle and your surfaces. Perfect for both you and your mini me's, this new size is a must-have in your hydration lineup. Features: Triple wall insulation keeps your beverages ice cold Completely leakproof design Circular flip straw with hygienic flip tab Ambidextrous lid for right and left-handed sipping Ergonomic handle Rubber base helps protect your surfaces Cupholder compatible BPA free and dishwasher safe Capacity: 20 oz.